AtomicTech

I currently have Legacy Parts, MechJeb2, AmpYear, and Kerbal Engineer Redux and running it all on KSP 1.11.2. (No CKAN)

Woah, how and why are you still playing 1.2?

To give y'all more specs, before I made this post the spacecraft shuttles were a Onion Command Pod with a PB-X750 Xenon Container, 80 units of monoprop, 4 Z-400 Rechargeable Batteries, 4 Dawn Thrusters, and two large solar panels. It has a small docking port, an Advanced Inline Stabilizer, and 4 RV-105 RCS Thruster Blocks.

I'm currently planning two space stations with one around Duna and the other around Ike. I'm also planning to make shuttles like the title suggests. I'm torn between using either Ion or Liquid Fuel/Oxidizer propulsion for the four shuttle craft. Can I please get some pros and cons about engine types or something else entirely. (I do not use modded parts save for reserve electricity from AmpYear.)